ICP Control Board Kit for RHS150H0CA0AAAA — Heat Pump Defrost Board | Ships Today

Overview

This OEM control board kit (PN 1183618) is the electronic brain of your ICP Tempstar Heil RHS150H0CA0AAAA heat pump. It manages the defrost cycle, sequences the compressor contactor and reversing valve, monitors the defrost thermostat, and coordinates outdoor fan operation. A failed board is one of the most common reasons a heat pump ices over in winter, fails to switch between heating and cooling, or won't energize the compressor at all. Symptoms of a bad board include no defrost cycle, the outdoor coil staying frosted, the unit stuck in one mode, intermittent no-starts, or visible burn marks and scorched relays on the board itself.

Specifications

Compatibility

Direct OEM replacement kit for the ICP Tempstar Heil RHS150H0CA0AAAA heat pump. Kits include the board and the mounting/wiring hardware needed for the swap. Match the part number to your existing board before installing.

Installation Guide

1. Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter.
2. Access — Remove the condenser unit control-panel cover.
3. Document — Photograph every wire and connector on the existing board before touching anything.
4. Remove — Unplug the harnesses, release the board standoffs/screws, and lift out the old board.
5. Install — Mount the new board and reconnect each harness and terminal exactly per your photo.
6. Test — Restore power, confirm the unit runs in heating and cooling, and verify the defrost cycle initiates.

Signs You Need a Replacement

• Outdoor coil ices up and the unit never runs a defrost cycle
• Heat pump stuck in heating or cooling and won't reverse
• Intermittent or complete no-start of the compressor and fan
• Burn marks, scorched relays, or a burnt smell on the board

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.